52 lines
1.7 KiB
Factor
52 lines
1.7 KiB
Factor
USING: help.markup help.syntax ;
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IN: ascii
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HELP: blank?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for an ASCII whitespace character." } ;
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HELP: letter?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for a lowercase alphabet ASCII character." } ;
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HELP: LETTER?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for a uppercase alphabet ASCII character." } ;
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HELP: digit?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for an ASCII decimal digit character." } ;
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HELP: Letter?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for an ASCII alphabet character, both upper and lower case." } ;
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HELP: alpha?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for an alphanumeric ASCII character." } ;
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HELP: printable?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for a printable ASCII character." } ;
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HELP: control?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for an ASCII control character." } ;
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HELP: quotable?
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{ $values { "ch" "a character" } { "?" "a boolean" } }
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{ $description "Tests for characters which may appear in a Factor string literal without escaping." } ;
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ARTICLE: "ascii" "ASCII character classes"
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"The " { $vocab-link "ascii" } " vocabulary implements traditional ASCII character classes:"
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{ $subsection blank? }
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{ $subsection letter? }
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{ $subsection LETTER? }
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{ $subsection digit? }
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{ $subsection printable? }
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{ $subsection control? }
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{ $subsection quotable? }
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"Modern applications should use Unicode 5.0 instead (" { $vocab-link "unicode.categories" } ")." ;
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ABOUT: "ascii"
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